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This week, the US Army used a high-energy multipurpose laser to shoot down three drones near the US-Mexico border, which official reports claimed were “posing a physical threat to US military personnel and CBP partners,” referring to Customs and Border Patrol.
The operation took place between the night of August 25 and the early morning of August 26 in the vicinity of the Rio Grande Valley in Texas and was led by the Joint Task Force Southern Border (JTF-SB), which operates under US Northern Command. Authorities confirmed that, during the operation, agents used technology derived from the Army’s High-Energy Multipurpose Laser (AMP-HEL) system, a military program focused on implementing high-energy lasers for new defense capabilities.
Available information suggests that this initiative began in September 2025, when AeroVironment, a company specializing in defense technology, delivered the first two functional prototypes of these laser-based weapons to the US Armed Forces. Two new, improved systems were delivered as the program was expanded in December of the same year. According to the manufacturer, this particular platform, called the Locust Laser Weapon System, is designed to be mounted on military vehicles, as the Army has done with the versions it has received.
BLUEMONT, Va.—From an overlook in the foothills of the Blue Ridge Mountains, Dan Roelker gazed across the green splendor of the Shenandoah Valley. With the pleasant spring afternoon drawing toward evening, the Sun lazily crossed the sky, casting light all around.
The pleasing environs had put Roelker, who was drinking rye whiskey procured from a local distillery called Catoctin Creek, in an expansive mood to talk about one of his favorite subjects: light.
"If you can control light, you can control space," he said. "So it’s basically a race for who is collecting the most light."
During most of the Artemis II mission, the crew of four astronauts beamed back low-definition video, both from inside the spacecraft and from exterior views of the Moon. It was exhilarating stuff, but in a world in which we're all watching HDTVs, it also felt a little flat.
This is because Orion largely communicated with Earth via radio waves, picked up by large dishes sprinkled around the world. This is pretty much the same way the Apollo spacecraft talked to Earth more than half a century ago.
However, unlike Apollo, the astronauts on Orion would periodically send batches of much higher-resolution data, including the stunning photographs of the far side of the Moon and the Solar eclipse observed from there. This was made possible by optical laser communications, and not just those built by NASA. The mission included a commercial component that could pave the way for vastly more data returning to Earth from space than ever before.
If you walk across the open yard in front of the Physics, Math, and Astronomy building at the University of Texas at Austin, you’ll see a 17-story tower and a huge L-shaped building. What you won’t see is what’s underneath you. Two floors below ground, behind heavy double doors stamped with a logo that most students have never noticed, sits one of the most powerful lasers in the United States.
I was the lead laser scientist on the Texas Petawatt, or TPW as we called it, from 2020 to 2024. Texas Petawatt, which is currently closed due to funding cuts, was a government-funded research center where scientists from across the country applied for time to use specialized equipment. It was part of LaserNetUS, a Department of Energy network of high-power laser labs.
This type of laser takes a tiny pulse of light, stretches it out so it doesn’t blast optics to pieces, and amplifies it until, for a brief instant, it carries more power than the entire US electrical grid. Then it compresses the pulse back to a trillionth of a second to create a star in a vacuum chamber.
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